How long can a US citizen stay in Vietnam with visa?
Could you please clarify the visa requirements for a US citizen traveling to Vietnam? Specifically, I'm interested in knowing how long a US citizen can stay in Vietnam with a visa, and if there are any restrictions or conditions that need to be met in order to extend the stay beyond the initial visa period? Additionally, are there different types of visas available for US citizens traveling to Vietnam, and if so, what are the main differences between them?